updated .dxf file (#814)

* Add files via upload

* Delete back_panel_dxf.dxf

* Delete back_panel.dxf

* Add files via upload

Was missing 73mm hole in DXF file for fan, cleaned up file name too

printer_mods/3dpandme/Fannypack_zero/back_panel.dxf

@@ -265,27 +265,51 @@ AcDbEntity
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 AcDbPolyline
 90
-4
+8
 70
 1
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 0.0
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--84.410260863130702
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--52.41119091785103
+-124.00000000000006
+42
+-0.41421356237310281
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--84.410260863130702
+-106.00000000000003
 20
--42.411190917851044
+-122.00000000000001
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--94.410260863130702
+-106.00000000000001
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--42.411190917851044
+122.00000000000001
+42
+-0.41421356237309243
 10
--94.410260863130702
+-104
 20
--52.41119091785103
+124
+10
+104
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+124.00000000000006
+42
+-0.41421356237310281
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+106.00000000000003
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+106.00000000000001
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+-122.00000000000001
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+-0.41421356237309243
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+104
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+-124
 0
 LWPOLYLINE
 5
@@ -297,51 +321,27 @@ AcDbEntity
 100
 AcDbPolyline
 90
-8
+4
 70
 1
 43
 0.0
 10
--104
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 20
--124.00000000000003
+-42.411190917851044
-42
--0.41421356237309503
 10
--106.00000000000001
+-94.410260863130716
 20
--122.00000000000001
+-52.41119091785103
 10
--106
+-84.410260863130716
 20
-122.00000000000001
+-52.41119091785103
-42
--0.41421356237309503
 10
--104
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-124
+-42.411190917851044
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-124.00000000000003
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--0.41421356237309503
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-106.00000000000001
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-122.00000000000001
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--122.00000000000001
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--0.41421356237309503
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-104
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--124
 0
 CIRCLE
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@@ -353,9 +353,33 @@ AcDbEntity
 100
 AcDbCircle
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--15.910260863131072
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--57.4111909178514
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+0
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+CIRCLE
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+103
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+AcDbEntity
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+AcDbCircle
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 40
@@ -369,7 +393,7 @@ AcDbCircle
 0
 CIRCLE
 5
-103
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 100
 AcDbEntity
 8
@@ -393,7 +417,7 @@ AcDbCircle
 0
 CIRCLE
 5
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+105
 100
 AcDbEntity
 8
@@ -401,13 +425,13 @@ AcDbEntity
 100
 AcDbCircle
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--15.910260863130681
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@@ -417,7 +441,7 @@ AcDbCircle
 0
 CIRCLE
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+106
 100
 AcDbEntity
 8
@@ -425,13 +449,13 @@ AcDbEntity
 100
 AcDbCircle
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--87.41026086313056
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